Catalytic material and process of producing the same.



I the temperature to which the TEOFRON BOBERG, or LONDON, ENGLAND,'ASSIGNOR T0 TECHNO-CHEMICAL LABORA- omas LIMITED, or LONDON, ENGLAND.

- CATALYTIC MATERIAL AND PROCESS OF PRODUCING THE SAME.

x 1,093,377. Specification of Letters Patent. No Drawing.

Application filed March 3. 1913.

l contained wholly or mainly as suboxid. The preferred range of ten'iperature is from subject of the Kin of Sweden, of Fairlawn, 230 to 270 0., the material being heated lar n e Road, lapham Park, London, I for a longer period the lower the tempera- S. W., England, have invented certain new ture employed. Unnecessaril\ protracted and useful Improvements in Catalytic Maheating should be avoided as leading to a terial and Processes of Producing the Same,

more complete reduction with loss of activof which the following 1s a specification. lty in the product.

e product may he ate use in the medium used, c. g. oil, but if slow oxidation in the atmosphere can be allowed, overheating is prcvented (which leads to excessive oxidation) d the material can. then be kept without special precautions against oxidation and re stored to full activity when required as hereinafter indicated. For instance the material may be collected in water and then filtered erefrom and allowed to dry in the air or may be collected in an atmosphere of hydrogen, which is then slowly replaced by oxy- Patented Apr. 14, 1914. Serial N 0. 751,698.

To all whom it may. concern c it known that I, TEorRoN Bonnno, a

collected for immediin which t is to be not required at once treatment of catalysts therefor and to procatalysts.

e invention consists in preparing the reduction with I This mvention further consists in colleetgen or air. ing the reduced product in an indifferent In order to prepare it for use the material liquid such as water, separating it therefrom only requires to be heated for say one to two and drying it or a owing it to ry or in hours at about 180 C. in an atn'iosphere of ot erwise permittin slow oxidation and hydrogen or the catalyst may be treated with preparing it for use when needed by exposhydro en when in suspension in a suitable mg it to hydrogen for some time at a relaliiquid When the catalyst is used for liar C. is invention also consists in the improvements in the carrying out of catalytic processes hereinafter indicated.

have observed that the product of reduction of ignited nickel carbonate by means of hydrogen has a greater activity the lower the temperature of reduction, the activity of the catalyst depend' upon the metal terial being at least in part of preparing a catalytic material according to this invention consists in introducing ignited nickel carbonate (the been repared so as to free it as far as possible rom deleterious impurities) continuously into a rotary inclined tube suitably heated through the whole or part of its length so that the material passes throu 'h the apparatus in a slow stream while ydrogen is passed through the heated tube in the opposite direction.

By adjusting the flow of the material and substance is heated, the reduction can so be carried out as to givea product in which the metal is similar cases no as'the catalyst acquires its full activity in the early stages of the process.

e catalyst may be prepared by reducing to nickel as completely as the oxids this product with air Tia? be carried out at beand 600 C.

ave made experiments with various products of reduction and have obtained inter alz'a the following results :-The product of reduction of such a composition that an ultimate analysis'gives a proportion of nickel to oxygen corresponding to an' imaginary formula Ni o, i. e. but little suboxid, produced in a certain unit of time hardening of a liquid fat up to a centigrade, Whereas, a product corresponding to an imaginary formula Ni O gave in the same time and for the same material hardening corresponding to a melting point of 58 centigrade. It appeared, however,

special treatment-of this kind is necessary f melting point of 40 nickel to the reducing action of hydrogen to to produce a compound in which the metal is contained mainly as one or more sub-oxids, collecting the product in an indifierent liquid, and separating the product from the that with a lesser proportion of nickel in the product, 2'. e. a composition that apparently indicated the presence of higher oxids, the same was less active, while, at the same time, compounds containing even higher p-roliquid and dryin it. portions of metallic nickel than that first 4:. The metho f preparing a catalyst specified above, viz. active than the latter. It will be understood that the improved catalytic material above described may be supported on an inert support, for example, by metallic compound on to an inert support latter is in a finely divided condition and before the reduction is carried out, and it will also be understoo that the improved catalytic materials referred to may be employed in any oi the vario us 4 me he consisting in metal to the reducing action of hydrogen to produce a compound in which the metal is contained mainly as one .or more sub-oxids, and preparing by heating at about 180 C. in an atmosphere of hydrogen.

5. The method of preparing a catal consisting in subjecting high oxid ot nickel to the reducing action of hydrogen to produce a compound in which the nickel is contained mainly b-oxids, collecting the product and preparing it for use by heating in an atmosphere of hydrogen at a relatively low temperature.

6. An active catalyst for the hydrogenal O were still less ds previously proposed for carrying out catalytic reactions, for example, rocess in which the material to be treated is admixed with the catalyst and the mixture exposed as a spray or in asimilar tion of unsaturated fatty acids and their condition of minute subdivision to the acglycerids, containing a sub-oxid of nickel tion of hydrogen or other reacting gases; corresponding approximately to the formula I claim: Ni O An active catalyst for the hydrogenafatty acids and their sub-oxid of nickel of nickel 7 tion of unsaturated glycerids, containing a produced by treating a high oxid at a temperature of approximately 230 C to 270 C. to the reducing action 0 hydrogen.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

TEOFRON BOBERG.

1. The method of preparing a catalyst consisting in subjecting a high oxid of which the nickel is produce a compound in contained mainly as one or more sub 2. The method of preparing a catalyst consisting in subjecting a high oxid of. nickel, at a temperature of approximately 230 C. to 27 0 (3., to the reducing action 0 hydrogen to produce a compound in which the nickel is contained mainly as one or more sub-oxide.

3. he method of preparing a catalyst Witnesses: consisting in sub ec t1ng a high oxid of BERTRAM H. MATTHEWS,

a metal to the reducing action of hydrogen J. W. PATGHING. 

